Which of the following enzymes contains Mo as prosthetic group?
Option D (Nitrate reductase): It catalyzes the reduction of nitrates to nitrites by using $Mo$ or molybdenum as its cofactor which falls under the prosthetic group.
What is the prosthetic group for catalase enzyme?
The constitution of the enzyme catalase is similar to that of hemoglobin. The prosthetic group is a hematin (1) and combines with a specific protein to form the enzyme molecule.
What is the example of prosthetic group?
Some examples of prosthetic groups are heme, biotin, flavin, iron sulfides, copper and ubiquinone. Prosthetic groups are non-protein components that attach mostly to proteins and assist the protein in various ways.
What makes up a Holoenzyme?
Holoenzyme is a complete, functional enzyme, which is catalytically active. Holoenzyme consists of an apoenzyme together with its cofactors. Holoenzyme contains all the subunits required for the functioning of an enzyme, e.g. DNA polymerase III, RNA polymerase. Holoenzyme is also known as a conjugate enzyme.
What is meant by a prosthetic group?
prosthetic group A non-protein component of a conjugated protein, or the cofactor of an enzyme to which it is bound so tightly that it cannot be removed by dialysis.
Which is not true about coenzymes and prosthetic group?
The cofactors may be metal ions or organic chemicals. The organic chemicals of the cofactors are known as a coenzyme which is loosely attached to the apoenzyme. … Both coenzymes and prosthetic groups are organic compounds and they are not polypeptides.
What is Km value?
Km (Michaelis Menten) indicates that substrate concentration attains half its maximum velocity when enzymes catalyze the chemical reaction. Km values generally lies between 10-1 to 10 -6M.
How many classes are enzymes divided into?
According to the type of reactions that the enzymes catalyze, enzymes are classified into seven categories, which are oxidoreductases, transferases, hydrolases, lyases, isomerases, ligases, and translocases. Oxidoreductases, transferases and hydrolases are the most abundant forms of enzymes.